Finding the Fourth Proportional to 630,811.98, 870,389.86 and 372,557.98
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Solution
The fourth proportional to 630,811.98, 870,389.86 and 372,557.98 is: 514,052.83
Step by Step Solution
- Step 1: Write the proportion equation
630,811.98 : 870,389.86 = 372,557.98 : x - Step 2: Convert to fraction form
630,811.98/870,389.86 = 372,557.98/x - Step 3: Cross multiply
630,811.98x = 870,389.86 × 372,557.98 - Step 4: Simplify right side
630,811.98x = 324,270,684,946.71 - Step 5: Solve for x
x = 324,270,684,946.71/630,811.98 - Step 6: Final answer
x = 514,052.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.